Vaillant ecotec plus 824 leak

[ratrace]

Hello chaps, first post...

Went to a job yesterday today to fix a leak in a vaillant ecotec plus 824. One of the central heating pipes was leaking from the underside of the heat exchanger. I removed the clip housing and eased the pipe out to check the rubber seal, which was fine. Replaced pipe and clip and refilled, no leaks. Got a call earlier this evening that pressure has gone from boiler again i assume from the same place. Anyone had this problem before?

ste

 

[cross thread]

replace the rubber hose and recharge the ex vess

 

[ratrace]

Cheers for the reply gordon. So id you would change the hose further along the pipe even though the leak was before there?

 

[ratrace]

Im wondering whether the washer might have flattened too much and thats what is causing the leak when its under pressure.

 

[twgas]

always replace the washer or O-ring after separating something , old ones often leak.

 

[cross thread]

replace the hoses as they will fail,the sooner the better

 

[ratrace]

Right gents, update. Been back round there today. Replaced both o-rings on heating pipes f/r. Filled system and it leaks before it barely reaches .5 bar. On further inspection it appeared to be leaking from a split/pin hole in the plastic section on the underside of the burner were the pipes enter. Leaked no matter what i tried. Checked parts manual and there is no reference to this section in there. Got me annoyed and puzzled no end.

 

[mickyg]

sounds like the heat exchanger is a gonna if what you say is right. Although you referring to the sump part of the heat exchanger as a burner is more worrying than the fact you've found one with a pinhole tbh.

 

[ratrace]

Slip of the tongue as you can see from my first post. No need for you to worry, thanks for your input.